As a sports agent in the US, the number of licenses, regulations, and laws can be daunting. A basketball agent needs to be FIBA licensed, certified by the NBA, and compliant with the states in which he recruits. Often, the least important of these requirements to the agent is compliance with State law.
State laws are often confusing and hard to find. In the US, roughly 43 states have enacted statutes modeled after the Uniform Athlete Agents Act (“UAAA”). “The UAAA was created by the urging of the NCAA in 2000 as a model state law to govern sports agents.” http://www.al.com/sports/index.ssf/2013/09/whats_the_best_way_to_control.html. The UAAA mainly applies to non-professional athletes, although several jurisdictions have been discussing revisions to expand its scope to professionals. To see a comprehensive report on the laws in all 50 US States, prepared by The Sports Agent Blog, see http://sportsagentblog.com/2011/06/02/athlete-agent-laws-in-the-united-states/
Enforcement of state law is much more rare than enforcement of licensing requirements with the leagues. An NFL agent cannot represent a player in the league without being certified, no exception. But he can represent a player without registering with that state. He just takes the chance that the law won’t be enforced. Be careful though, the laws do get enforced occasionally. http://espn.go.com/college-football/story/_/id/9824132/man-39-charged-breaking-north-carolina-sports-agent-law.